are poised to become the first in the nation to allow driverless cars. governor brown arrived at google headquarters in a computer-controlled toyota prius to sign legislation approving the vehicles. google is the driving force behind what is making it possible. they use software, radar and gps to guide vehicles at up to highway speeds. google says the prototypes have logged 300,000 miles without an accident. google expects to have driver free cars on the road within 10 years. >> and don't you have the temptation to grab the wheel? it is hard. >>> let's get a check of the forecast. >> it would be nice to sit and read. sandhya patel is here. >> giving you all kinds of ideas. dan and carolyn, good evening to you. we have autumn heat headed our way. we hillary run the sum -- we will rerun the summer heat. right now from the east bay hills camera, i want to show uh beautiful sunset as we look toward the camera. notice the fog. it was coming in, and it was coming in fast. i want to fast-forward to our rooftop camera. here is the time lapse. notice the fog. the bay bridge is in and out of that